Valve for pumps.



M. SMOLENSKY.

VALVE FOR PUMPS.

APPLICATION FILED APR.17,1913.

Patented Feb. 17, 1914.

- ble acting pump and in this respect is-implied. The valve casing'freely MICHAEL SMOLENSKY, OF CLEVELAND, OHIO. y

VALVE FOB PUMPS.

Specication of Letters Patent. Patented Feb. 17, 1914.

Application led April 17, 1913. Serial No. 761,766.

Tr all whom it may concern Be it known that I, MICHAEL SMoLENsKY, asubject of the Emperor of Austria-Hungary, residing at Cleveland, in thecounty of Cuyahoga and State of Ohio, have invented certain new anduseful Improvements in Valves forIumps, of which the following isf aspecification.

This invention relates to valves for pumps, and it is capable ofapplication to air or gas pumps as well as to liquid pumps.

.The object of the invention is to provide an improved construction andarrangement of valves and valve casing, the inlet and o utlet valvesbeing contained in a single casingl or fitting which is cored out toallow ow around the valves when they are in certain positions, and thevalves will operate without the springs or other parts liable to getloose or wear out quickly.

In the accompanying drawings-Figure 1 is a side elevation of a singleacting pump provided with the invention. Fig. 2 is an enlarged detail insection of the valve chamber. Fig. 3 is a detail in perspective of astop at the outlet valve. Fig. 4 is a top view of the outlet valve.

Referring speciiically to the drawings, 20 indicates the cylinder of` asingle acting pump provided with a reciprocating piston 21. Theinvention may be applied to a doutherefore no limitation 6 may be castin the form of a sphere, for the sake of strength, and it containspassages 7 located at right angles to each other and extending throughthe casing. At the lower end of the vertical passage 7 is a nipple 22for connection of the pipe or fitting 23 leading to the cylinder 20. Atthe other end of the vertical passage 7 is a similar nipple 24 forconnection to the outlet pipe 25. The horizontal passage 7 is tapped atits opposite ends to receive the ends of the inlet pipes 28 and theinlet valves Sa work in the opposite ends of said passage 7 and seatagainst the inlet pipes when closed. The ends of the passage arecounterbored where work, and form shoulders 29 against which the valvesstop when they are open. The valves comprise loose plugs and areslidable in the bore.

Cored passages 7a extend from the inlet the val ves passages 7 throughthe body of the casing and around the valves 8a, so that when saidvalves are opened'by the suction the fluid entering through the pipes 28flows through said passages 7a to the main passage 7 behind the valves,and when said. valves are seated under pressure the outlet of fluid isThe discharge valve 8 works in a counterbore in the u per part of thevertical passage 7, closing under suction against the shoulder 30, andopening under pressure to contact with projections 10 on a bushing 9fitting in the upper part of the bore and held there by a nut 31. Andpassages 7b are cored in the casing, to extend around the valve 8, whenit is opened under pressure, so as to allow flow from the cylinderthrough the vertical passage 7, the cored passages 7 b and the thimble 9to the discharge 25. A

The valve plugs are preferably constructed as shown in Fig. 4, eachconsisting of a rubber plug 11 with a conical end, held in a brass ring12, but other kinds of plugs may be used if desired.

It will be noted that the valves cannot get out of place or become looseor jammed'. The whole valve casing for all the valves may be made in onepiece, and can be readily attached or detached, and the valve edges arenot subject to the destructive action of corrosive liquids or gases,since the flow is around through the ports in the casing, when thevalves are opened, rather than immediately beside the valves.

What is claimed as new is: i

A valve structure for pumps, comprising an integral casing .havingcommunicating bores extending therethrough, and counterbores 'formingvalve seats in said bores, cored passa-ges in the casing communicatingat their opposite ends with each bore respectively, and reciprocatingvalves in the bores, movable to and from the seats, the ends of thecoredpassages communicating with the bores on oppositesides of thevalves when the latter are in open position.

In testimony whereof, I do affix my signature in presence of twowitnesses.

, MICHAEL SMOLENSKY.

Witnesses:

JOHN A. BOMMHARD'T, J. B. Davis.

